"UNITED NATIONS -- This summer's sustainable development conference in Brazil, known as Rio+20, is emerging as an overt attempt by U.N. officials to shift away from the divisive politics of climate change to a broader debate on the green economy and how to bring it to developing nations."

"BLACKWELL, Okla. — Blackwell Zinc Co. paid one of the best wages in Kay County before environmental problems and contamination concerns closed it in 1974. Now some residents here are entitled to one last payday — this time for damages caused by the smelter operation."

"House Transportation Chair John Mica introduced Americans to the GOP vision for transportation on Tuesday -- more highways and more toll roads. To pay for it all, there would more offshore drilling. Democrats and environmentalists, predictably, weren't impressed."

"FORT WORTH, Texas — A new Texas Railroad Commission rule requiring oil and natural gas operators to publicly disclose the chemicals used in hydraulic fracturing of natural gas and oil wells takes effect Wednesday."

"Canada’s Nunavut Territory is the largest undisturbed wilderness in the Northern Hemisphere. It also contains large deposits of uranium, generating intense interest from mining companies and raising concerns that a mining boom could harm the caribou at the center of Inuit life."

"A drought that a government official called the most severe Mexico had ever faced has left two million people without access to water and, coupled with a cold snap, has devastated cropland in nearly half of the country."

The Central New York Oil & Gas Co. assured residents and regulators it would avoid using eminent domain to lay its pipeline in Pennsylvania's pristine Endless Mountains. But 2 days after FERC granted approval, the company went to court to condemn nearly half the properties along the route.

The Cossoloottoo family in Centerville, Iowa, suspected vaccinations were the culprit when their 6-month-old daughter got seizures and what looked like autism. Their concerns were worsened by studies linking vaccinations to autism -- studies later discredited as fraud. It wasn't until some 10 years later that a specialist at the Mayo Clinic correctly diagnosed their daughter as having a genetic disorder, Dravet syndrome, that strikes one in 20-40,000 children born.

"MIAMI -- The U.S. is not ready to handle an oil spill if drilling off the Cuban coast goes awry but can be better prepared with monitoring systems and other basic steps, experts told government officials Monday."